WO2014175482A1 - Dispositif d'accompagnement musical et système d'accompagnement musical utilisant une fonction de transmission audio ethernet - Google Patents

Dispositif d'accompagnement musical et système d'accompagnement musical utilisant une fonction de transmission audio ethernet Download PDF

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Publication number
WO2014175482A1
WO2014175482A1 PCT/KR2013/003533 KR2013003533W WO2014175482A1 WO 2014175482 A1 WO2014175482 A1 WO 2014175482A1 KR 2013003533 W KR2013003533 W KR 2013003533W WO 2014175482 A1 WO2014175482 A1 WO 2014175482A1
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WO
WIPO (PCT)
Prior art keywords
music
signal
ethernet
control unit
audio signal
Prior art date
Application number
PCT/KR2013/003533
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English (en)
Korean (ko)
Inventor
송희석
이무봉
김경철
이영신
Original Assignee
(주)씨어스테크놀로지
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by (주)씨어스테크놀로지 filed Critical (주)씨어스테크놀로지
Priority to PCT/KR2013/003533 priority Critical patent/WO2014175482A1/fr
Publication of WO2014175482A1 publication Critical patent/WO2014175482A1/fr

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements
    • G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
    • G10H2240/281—Protocol or standard connector for transmission of analog or digital data to or from an electrophonic musical instrument
    • G10H2240/295—Packet switched network, e.g. token ring
    • G10H2240/301—Ethernet, e.g. according to IEEE 802.3

Definitions

  • the present invention relates to a music accompaniment system and a music accompaniment apparatus using an Ethernet audio transmission function.
  • Music broadcast systems of various sizes are constructed to transmit voice or music in various places such as studios, schools, churches, or performance halls.
  • input of sound source data and output to a plurality of audio output devices such as speakers are performed in the form of analog signals, and a large number of audio cables are used for connection between a central broadcast device and a plurality of audio output devices. It is very cumbersome to install, and there is a high possibility of wrong wiring.
  • signal attenuation occurs. If the distance from the plurality of audio output devices is different, a delay may occur between the music output from each audio output device.
  • the music half-cycle system widely used in homes or businesses is not easy to carry because it is large in size and it is not easy to install because a large number of amplifiers and audio cables are required to connect a plurality of speakers.
  • the sound source content used as the accompaniment music is supplied to the DVD or the like, it is not easy to update the new sound source content.
  • the present invention provides a music accompaniment system that can easily transmit a variety of sound source data to a plurality of audio output devices through the Ethernet communication using the Ethernet (Audio) audio transmission function.
  • the present invention provides a music accompaniment system that can minimize the delay of the output as the distance between the central broadcasting device and the plurality of audio output devices are different from each other.
  • the present invention provides a music accompaniment system capable of transmitting audio output signals transmitted through an Ethernet network composed of bridges synchronized with each other in a specific geographical area without delay while guaranteeing quality of service.
  • a sound source input unit for receiving an analog audio signal or a digital audio signal, an A / D converter receiving the input analog audio signal and converting it into a digital audio signal, a first converting the at least one digital audio signal into an Ethernet signal
  • a music accompaniment device including an Ethernet communication interface for supporting an Ethernet communication to transmit a control unit and the Ethernet signal to an external audio output device, and an Ethernet communication interface for receiving the Ethernet signal from the music accompaniment device through Ethernet communication;
  • the received ether A second control unit for converting a signal into a digital audio signal, a D / A converter receiving the converted digital audio signal and converting the signal into an analog audio signal, and outputting the converted analog audio signal or digital audio signal to at least one audio output.
  • At least one music relay device including an audio output unit for outputting to the device, wherein the music accommodating device is interconnected with the at least one music relay device using an Ethernet communication interface, and the first controller and the second controller are And a clock synchronization unit configured to perform clock synchronization such that the Ethernet signal transmitted from the music accommodating device is received at the same time by the one or more music relay devices through periodic exchange of timing information.
  • the first controller and the second controller include a stream reservation controller configured to set a transmission path for transmitting the Ethernet signal between the music accommodating device and the one or more music relay devices, and the stream reservation controller Network resources required to ensure transmission quality of service (QoS) for stream traffic of Ethernet signals transmitted through a transmission path may be reserved.
  • QoS quality of service
  • the apparatus may further include a transmission controller.
  • the clock synchronizer may perform clock synchronization based on a clock of a clock synchronizer selected as a master device from among a plurality of clock synchronizers included in the music accommodating device and the one or more music relay devices.
  • a music accompaniment apparatus for providing audio data to a plurality of audio output apparatuses
  • the analog accompaniment from one or more sound source devices that provide a microphone or accompaniment sound source for converting a voice signal or performance signal into an electrical signal
  • a sound source input unit for receiving an audio signal or a digital audio signal, an A / D converter that receives the input analog audio signal and converts it into a digital audio signal, and converts the at least one digital audio signal into an Ethernet signal to convert external audio
  • a control unit for transmitting to an output device and an Ethernet communication interface for supporting Ethernet communication to transfer the Ethernet signal to an external audio output device, wherein the control unit includes a periodic timing signal with one or more music relays connected to the Ethernet. exchange of information) Through includes one wherein the above Ethernet signal transmitted to an external music or more access point clock for performing clock synchronization to be received at the same time from the synchronization unit.
  • the control unit may further include a stream reservation controller configured to set a transmission path for transmitting the Ethernet signal between the music accommodating device and the one or more music relay devices, wherein the stream reservation controller is configured to transmit the Ethernet to the set transmission path.
  • Network resources required to ensure transmission quality of service (QoS) for stream traffic of signals may be reserved.
  • the control unit may further include a transmission control unit that guarantees transmission within a prescribed delay time by setting a traffic class for each packet of the Ethernet signal transmitted to the one or more music relay devices.
  • the present invention is not limited to the embodiments disclosed below, but may be configured in different forms, and the present embodiments are intended to complete the disclosure of the present invention and to provide general knowledge in the technical field to which the present invention belongs. It is provided to fully inform those who have the scope of the invention.
  • a plurality of devices capable of Ethernet communication can be connected and used as a sound source, it is easy to carry and easy to build an accompaniment system.
  • FIG. 1 is a view schematically showing a music accompaniment system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing a detailed configuration of a music accompaniment apparatus according to an embodiment of the present invention.
  • FIG. 3 is a block diagram showing a detailed configuration of a music relay device according to an embodiment of the present invention.
  • FIG. 4 illustrates an example of a music accompaniment system in which a plurality of music relay devices are cascaded to the music accompaniment device according to the present invention.
  • FIG. 5 shows an example of a configuration in which a plurality of audio output devices are connected to a music accompaniment device in the present invention.
  • one component when one component is referred to as “connected” or “connected” with another component, the one component may be directly connected or directly connected to the other component, but in particular It is to be understood that, unless there is an opposite substrate, it may be connected or connected via another component in the middle.
  • FIG. 1 is a view schematically showing a music accompaniment system according to an embodiment of the present invention.
  • the music accompaniment system may be largely composed of one music accompaniment apparatus 100 and one or more music relay apparatuses 200.
  • the music accompaniment apparatus 100 is connected to various sound source apparatuses and generates an audio output signal by receiving a performance signal, a music signal, an audio signal, an accompaniment signal, etc. (hereinafter, referred to as an audio input signal) from the sound source apparatus. And it is transmitted to the music relay device 200 via Ethernet communication. The transmitted audio output signal is output through one or more audio output devices connected to the music relay device 200. In this case, the music accompaniment apparatus 100 may transmit the audio output signal to the music relay apparatus 200 in a streaming manner.
  • the music accompaniment apparatus 100 may generate an audio output signal by converting the audio input signal into an Ethernet frame format so as to conform to the Ethernet communication standard.
  • an audio output signal converted into a plurality of Ethernet frames in this way will be referred to as an Ethernet signal.
  • the music accompaniment apparatus 100 and the music relay apparatus 200 may include an Ethernet communication interface such as RJ-45 for Ethernet communication, and a physical connection between the Ethernet communication interfaces may be made by a UTP cable.
  • the UTP cable corresponds to a category such as CAT5, CAT6, etc., and may use a FTP (Foil Screened Twist Pair Cable) or STP (Shielded Twist Pair Cable) instead of the UPT cable.
  • the music accompaniment system may include one or more music relay devices 200 according to an installation environment or scale, and the music relay device 200 may include audio received through an external audio output device included therein or connected through an interface. Output the output signal.
  • the plurality of music relays 200 may be connected in cascade form by the UTP cable.
  • clock synchronization may be performed between all devices connected to the Ethernet in order to eliminate an output delay caused by the distance difference between the music accommodating device 100 and the plurality of music relay devices 200.
  • the music accompaniment system also sets a transmission path through which audio stream traffic is transmitted in advance for smooth transmission of audio stream traffic transmitted from the music accompaniment apparatus 100 to the plurality of music relay apparatuses 200. Reserves network resources as required.
  • FIG. 2 shows a detailed configuration of a music accompaniment apparatus 100 according to an embodiment of the present invention.
  • the music accompaniment apparatus 100 includes at least one line input terminal 110 to be connected to various external sound source devices, and an audio input signal input from the outside through the line input terminal 110.
  • At least one buffer 120 for buffering the at least one A / D converter 130 which receives an analog audio input signal from the buffer and converts it into a digital signal, and collects the audio input signal
  • a controller 140 for generating an audio output signal and converting the signal into an Ethernet signal
  • an ethernet phy 160 for encoding the converted ethernet signal into a format suitable for a physical layer
  • the ethernet pi Ethernet output interface 170 for transmitting the encoded Ethernet signal to the outside.
  • the sound source device may include, for example, a microphone 10 for converting an externally input voice signal or performance signal into an electrical signal, and digital content content. It may include a variety of smart devices such as a PC 20, a smart phone, a tablet pad 30, and the like to transmit or reproduce a digital signal to output an analog signal.
  • the line input terminal 110 may be a USB terminal or an audio jack.
  • the controller 140 may control the input digital audio signal to be output to an external mixer and amplifier through the D / A converter 180 and the line output terminal 190.
  • the music accompaniment apparatus 100 may further include a flash memory 150 for storing data or an execution program, and a power supply 195 for supplying power.
  • the controller 140 combines the voice signal or performance signal input through the microphone 10 with the accompaniment signal or music signal transmitted from the sound source devices 20 and 30 to generate a music output signal made of an Ethernet signal.
  • the controller 140 may include a clock synchronizer 142 that performs clock synchronization between a plurality of music relays 200 connected through an Ethernet network, and stream traffic of an Ethernet signal to all connected music relays 200.
  • the clock synchronizing unit 142 periodically exchanges timing information signals with the clock synchronizing units of the other music relays 200 connected through the Ethernet network, thereby precisely synchronizing the clocks with each other.
  • the Ethernet signal transmitted from the music accommodating apparatus 100 may be controlled to be received at the same related time in all the clock relayed music relay apparatus 200.
  • any one of the music accompaniment device 100 and all the music relay devices 200 connected to the Ethernet network is set as a master device, and the remaining devices are clock clocks of the master device through respective clock synchronizers. And a timing information signal are exchanged to synchronize their clocks to the clocks of the master device.
  • the determination of the master device may be automatically selected or manually set.
  • the stream reservation controller 144 sets a transmission path through which stream traffic of Ethernet signals transmitted from the music accommodating device 100 to the plurality of music relay devices 200 is relayed, and is required through the entire transmission path. Reserve network resources required to ensure transmission quality of service (QoS) for stream traffic.
  • QoS transmission quality of service
  • the stream reservation controller 141 transmits an advertise message to the plurality of music relay devices 200 and receives a ready message from another music relay device 200 in response thereto. 200 to set the transmission path.
  • the advertise message may include a MAC address and a unique ID of the music accompaniment apparatus 100 as a stream origin, and a MAC address of the music relay apparatus 200 as a stream destination, and further include QoS requirements and allowables. QoS information such as delay time may be included. This process is called a stream reservation process.
  • the transmission control unit 146 may set an appropriate traffic class for each Ethernet packet of the Ethernet signal transmitted through the transmission path to ensure transmission within a delay time defined for each traffic class.
  • a traffic class is defined as a total of eight classes in IEEE 802.1p, and two types of classes 4 and 5 may be applied to the Ethernet packets among the transmission control unit 146. This operation is called traffic shaping, and the transmission control unit 146 can prevent the Ethernet packets from being concentrated on any path on the transmission path through traffic shaping of the transmitted Ethernet packets.
  • the Ethernet pi 160 encodes the Ethernet signal transmitted from the controller 140 so that the Ethernet signal can be transmitted through a physical layer corresponding to layer-1 of the Ethernet network, or the Ethernet output interface 170.
  • the received Ethernet signal can be decoded appropriately for the format of the upper layer.
  • FIG 3 shows a detailed configuration of a music relay device 200 according to an embodiment of the present invention.
  • the music relay device 200 includes an Ethernet communication interface 210 for Ethernet connection with the music carrier 100 or another music relay device, and the Ethernet communication interface 210.
  • Ethernet pi 220 for converting the Ethernet signal of the physical layer format received through the format of the upper layer, and the Ethernet signal received from the Ethernet pi 220 reconverts to a normal audio output signal or other music relay
  • a controller 230 for retransmitting to a device
  • a D / A converter 250 for converting the audio output signal received from the controller 230 into an analog format
  • a buffer 260 for buffering the audio output signal
  • an external device And a line output terminal 270 connected to the audio output device of the.
  • Ethernet output interface 210 the Ethernet pi 220, the controller 230, the D / A converter 250, the buffer 260 and the line output terminal 270 is the configuration of the music accommodating device 100 And operation is the same.
  • the music relay device 200 may include a flash memory 240, a power supply unit 295, an A / D converter 280, and a line input terminal 290 that perform the same configuration and operation as the music accompaniment device 100. It may further include.
  • FIG. 4 illustrates a case where a plurality of music relays 200 are cascaded with a CAT 5 UTP cable in a music accompaniment apparatus 100 in the music accompaniment system according to an exemplary embodiment of the present invention.
  • the maximum distance between the devices can be limited according to the specifications of the UTP cable used, for example, in the case of the CAT-5 UTP cable can ensure a maximum distance of 100m.
  • the music relay 200 is a structure (200-1, 200-2) is combined with a power amplifier for amplifying the output signal and the audio output means such as a speaker inside the device, or only the power amplifier It is provided inside and connected to the external audio output device 40 and the line output terminal 270 through the structure (200-3), or through the line output terminal 270 to the external power amplifier 60 and audio output It may be a structure (200-4, 200-5) connected to the device 40.
  • This configuration is suitable for the case where the speakers are respectively placed in a plurality of places separated from each other.
  • FIG. 5 illustrates a configuration in which the music relay 200 is connected to the plurality of audio output devices 70-1 to 70-n.
  • the music relay 200 needs to include a plurality of line output terminals 270 in order to connect the plurality of audio output devices 70.
  • Such a configuration is suitable when there is more than one space in which a plurality of speakers are arranged and each space is separated from each other, and the music relay device 200 is disposed in each space, and the plurality of speakers are arranged in the music relay device 200. Audio output signals can be output by connecting speakers.
  • the music accompaniment system can appropriately arrange the speaker according to a wide area such as a large performance hall, church, school, large building, or a narrow area such as karaoke, home, etc. Even if the distance to the device is different, the audio output can be matched without delay.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

La présente invention concerne un système d'accompagnement musical et un dispositif d'accompagnement musical auquel sont connectés une pluralité de dispositifs de sortie audio. Le dispositif d'accompagnement musical comprend : une unité d'entré de source sonore dans laquelle un signal audio analogue/numérique est introduit soit en provenance d'un microphone convertissant un signal vocal ou un signal instrumental en un signal électrique, soit en provenance d'un dispositif de source sonore fournissant une source sonore d'accompagnement ; un convertisseur A-N qui reçoit le signal audio analogue introduit et le convertit en un signal audio numérique ; un contrôleur qui convertit le signal audio numérique en un signal Ethernet et qui transmet le signal Ethernet vers un dispositif de sortie audio externe ; et une interface de communication Ethernet qui exécute une communication Ethernet afin de transférer le signal Ethernet au dispositif de sortie audio externe, le contrôleur comprenant une unité de synchronisation d'horloge qui réalise la synchronisation d'horloge de sorte que le signal Ethernet transmis à l'extérieur soit reçu dans un dispositif de relais de musique, et qui est connectée, en même temps, par l'Ethernet pour échanger périodiquement des signaux de relations temporelles avec le dispositif de relais de musique, ce qui minimise un retard de sortie audio dans une pluralité de haut-parleurs en différents emplacements.
PCT/KR2013/003533 2013-04-24 2013-04-24 Dispositif d'accompagnement musical et système d'accompagnement musical utilisant une fonction de transmission audio ethernet WO2014175482A1 (fr)

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PCT/KR2013/003533 WO2014175482A1 (fr) 2013-04-24 2013-04-24 Dispositif d'accompagnement musical et système d'accompagnement musical utilisant une fonction de transmission audio ethernet

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PCT/KR2013/003533 WO2014175482A1 (fr) 2013-04-24 2013-04-24 Dispositif d'accompagnement musical et système d'accompagnement musical utilisant une fonction de transmission audio ethernet

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112567758A (zh) * 2018-06-15 2021-03-26 思妙公司 具有时延管理和社交媒体类型用户界面机构的视听实况流系统和方法
US11212637B2 (en) 2018-04-12 2021-12-28 Qualcomm Incorproated Complementary virtual audio generation

Citations (5)

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Publication number Priority date Publication date Assignee Title
US20040144241A1 (en) * 1999-04-26 2004-07-29 Juskiewicz Henry E. Digital guitar system
KR20070058914A (ko) * 2005-12-05 2007-06-11 한국전자통신연구원 이더넷 수동 광 가입자망에서 ＱｏＳ보장을 위한 대역 할당장치 및 방법
US20070150082A1 (en) * 2005-12-27 2007-06-28 Avera Technology Ltd. Method, mechanism, implementation, and system of real time listen-sing-record STAR karaoke entertainment (STAR "Sing Through And Record")
KR101057670B1 (ko) * 2010-04-20 2011-08-18 주식회사 에이디지털미디어 사운드 네트워크 전송시스템
KR101106681B1 (ko) * 2011-03-25 2012-01-18 이동건 양방향 디지털 변환 오디오 전송 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040144241A1 (en) * 1999-04-26 2004-07-29 Juskiewicz Henry E. Digital guitar system
KR20070058914A (ko) * 2005-12-05 2007-06-11 한국전자통신연구원 이더넷 수동 광 가입자망에서 ＱｏＳ보장을 위한 대역 할당장치 및 방법
US20070150082A1 (en) * 2005-12-27 2007-06-28 Avera Technology Ltd. Method, mechanism, implementation, and system of real time listen-sing-record STAR karaoke entertainment (STAR "Sing Through And Record")
KR101057670B1 (ko) * 2010-04-20 2011-08-18 주식회사 에이디지털미디어 사운드 네트워크 전송시스템
KR101106681B1 (ko) * 2011-03-25 2012-01-18 이동건 양방향 디지털 변환 오디오 전송 시스템

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11212637B2 (en) 2018-04-12 2021-12-28 Qualcomm Incorproated Complementary virtual audio generation
CN112567758A (zh) * 2018-06-15 2021-03-26 思妙公司 具有时延管理和社交媒体类型用户界面机构的视听实况流系统和方法

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